A nut having 6 flat sides and an integral washer which extends beyond the flats or periphery.
NSN 5910-01-373-9886
NSN 2925-00-194-7407
NSN 6150-01-395-8419
NSN 6135-01-495-0933
NSN 6240-00-388-6479
NSN 6610-00-985-4766
NSN 6620-00-400-4237
NSN 5985-01-603-3398
NSN 6620-01-138-8250
NSN 6320-01-551-3553
NSN 5965-01-163-8958
NSN 5965-01-631-6307